<HTML>
<HEAD>
<TITLE>JavaScript Source Code 3000:  BG Effects:  Alien Spacecraft</TITLE>
<META HTTP-EQUIV="JavaScript Source Code 3000" CONTENT = "no-cache">
<META NAME="date" CONTENT="2000-09-09">
<META NAME="channel" CONTENT="Web Developer">
<META NAME="author" CONTENT="Brian Gosselin (bgaudiodr@aol.com)">
<META NAME="section" CONTENT="BG Effects">
<META NAME="description" CONTENT="An alien spacecraft hovers around the background of the page using JavaScript and DHTML.  Best used with a space background.  Cool!">

<SCRIPT LANGUAGE="JavaScript">
<!-- Original:  Brian Gosselin (bgaudiodr@aol.com) -->
<!-- Web Site:  http://www.bgaudiodr.iwarp.com -->




<!-- Begin
var isNS = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4));
var _all = '';
var _style = '';
var wwidth, wheight;
var ydir = '++';
var xdir = '++';
var id1, id2, id3;
var x = 1;
var y = 1;
var x1, y1;
if(!isNS) {
_all='all.';
_style='.style';
}
function getwindowsize() {
clearTimeout(id1);
clearTimeout(id2);
clearTimeout(id3);
if (isNS) {
wwidth = window.innerWidth - 55;
wheight = window.innerHeight - 50;
} else {
wwidth = document.body.clientWidth - 55;
wheight = document.body.clientHeight - 50;
}
id3 = setTimeout('randomdir()', 20000);
animate();
}
function randomdir() {
if (Math.floor(Math.random()*2)) {
(Math.floor(Math.random()*2)) ? xdir='--': xdir='++';
} else {
(Math.floor(Math.random()*2)) ? ydir='--': ydir='++';
}
id2 = setTimeout('randomdir()', 20000);
}
function animate() {
eval('x'+xdir);
eval('y'+ydir);
if (isNS) {
pic1.moveTo((x+pageXOffset),(y+pageYOffset))
} else {
pic1.pixelLeft = x+document.body.scrollLeft;
pic1.pixelTop = y+document.body.scrollTop;
}
if (isNS) {
if (pic1.top <= 5+pageYOffset) ydir = '++';
if (pic1.top >= wheight+pageYOffset) ydir = '--';
if (pic1.left >= wwidth+pageXOffset) xdir = '--';
if (pic1.left <= 5+pageXOffset) xdir = '++';
} else {
if (pic1.pixelTop <= 5+document.body.scrollTop) ydir = '++';
if (pic1.pixelTop >= wheight+document.body.scrollTop) ydir = '--';
if (pic1.pixelLeft >= wwidth+document.body.scrollLeft) xdir = '--';
if (pic1.pixelLeft <= 5+document.body.scrollLeft) xdir = '++';
}
id1 = setTimeout('animate()', 30);
}
//  End -->
</script>
</HEAD>

<BODY BGCOLOR=#ffffff vlink=#0000ff text="white" OnLoad="getwindowsize()" OnResize="getwindowsize()" background="../img/alien-spacecraft/space.jpg" /img/alien-spacecraft/space.jpg">

<BR>
<center>
<table width=600 cellpadding=0 cellspacing=10>
<tr>
<td width=468 align=center>

    
    
</td>
<td width=120 align=center>
    
</td>
</tr>
</table>
<BR>
<BR>
<basefont size=3>
<FONT SIZE="+2" FACE="Helvetica,Arial">
<A HREF="../index.htm" /" TARGET="_top"><FONT COLOR="#0000FF"><b>Home</b></font></A>
<img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}">
<A HREF="index.htm" /bgeffects/"><font color="#FF0000"><b>BG Effects</b></font></A>
<img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}">
<FONT COLOR="#006666"><b>Alien Spacecraft</b></font></font>
<BR>
<BR>
<table BORDER=0 WIDTH=486 CELLPADDING=3 CELLSPACING=0>
<tr><td><font FACE="helvetica,arial,geneva">
<br>
<br>
<!-- Description --><!--content_start-->
An alien spacecraft hovers around the background of the page using JavaScript and DHTML.  Best used with a space background.  Cool!
<hr>
</td></tr>
</table>
<!-- Demonstration -->
<div id="pic1" style="position:absolute; visibility:visible; left:0px; top:0px; z-index:-1">
<img src="../img/alien-spacecraft/alien.gif" /img/alien-spacecraft/alien.gif" border="0">
</div>

<script language="javascript">
var pic1=eval('document.'+_all+'pic1'+_style);
</script>
You must also save these images<br>
to your server to use this script.<br>
Right-click the images below and<br>
select "Save Image As..."<br><br>
<img src="../img/alien-spacecraft/space.jpg" /img/alien-spacecraft/space.jpg" width=50 height=50 border=1><br><br>
<img src="../img/alien-spacecraft/alien.gif" /img/alien-spacecraft/alien.gif" width=50 height=50 border=1><br><br>
<P>
<P>
<a name="source">
<table BORDER=0 WIDTH=486 CELLPADDING=3 CELLSPACING=0>
<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva" color="black"><b>JavaScript Source Code 3000:  BG Effects:  Alien Spacecraft</b>
<p>Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s).  The script is yours!!!
<br><br></font></td></tr>
<tr><td BGCOLOR=yellow ALIGN=CENTER>
<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  2.62 KB" size=24>
</DIV>

<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- THREE STEPS TO INSTALL ALIEN SPACECRAFT:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the onLoad event handler into the BODY tag
  3.  Put the last coding into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Paste this code into the HEAD of your HTML document  --&gt;

&lt;HEAD&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;
&lt;!-- Original:  Brian Gosselin (bgaudiodr@aol.com) --&gt;
&lt;!-- Web Site:  http://www.bgaudiodr.iwarp.com --&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
var isNS = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) &gt;= 4));
var _all = '';
var _style = '';
var wwidth, wheight;
var ydir = '++';
var xdir = '++';
var id1, id2, id3;
var x = 1;
var y = 1;
var x1, y1;
if(!isNS) {
_all='all.';
_style='.style';
}
function getwindowsize() {
clearTimeout(id1);
clearTimeout(id2);
clearTimeout(id3);
if (isNS) {
wwidth = window.innerWidth - 55;
wheight = window.innerHeight - 50;
} else {
wwidth = document.body.clientWidth - 55;
wheight = document.body.clientHeight - 50;
}
id3 = setTimeout('randomdir()', 20000);
animate();
}
function randomdir() {
if (Math.floor(Math.random()*2)) {
(Math.floor(Math.random()*2)) ? xdir='--': xdir='++';
} else {
(Math.floor(Math.random()*2)) ? ydir='--': ydir='++';
}
id2 = setTimeout('randomdir()', 20000);
}
function animate() {
eval('x'+xdir);
eval('y'+ydir);
if (isNS) {
pic1.moveTo((x+pageXOffset),(y+pageYOffset))
} else {
pic1.pixelLeft = x+document.body.scrollLeft;
pic1.pixelTop = y+document.body.scrollTop;
}
if (isNS) {
if (pic1.top &lt;= 5+pageYOffset) ydir = '++';
if (pic1.top &gt;= wheight+pageYOffset) ydir = '--';
if (pic1.left &gt;= wwidth+pageXOffset) xdir = '--';
if (pic1.left &lt;= 5+pageXOffset) xdir = '++';
} else {
if (pic1.pixelTop &lt;= 5+document.body.scrollTop) ydir = '++';
if (pic1.pixelTop &gt;= wheight+document.body.scrollTop) ydir = '--';
if (pic1.pixelLeft &gt;= wwidth+document.body.scrollLeft) xdir = '--';
if (pic1.pixelLeft &lt;= 5+document.body.scrollLeft) xdir = '++';
}
id1 = setTimeout('animate()', 30);
}
//  End --&gt;
&lt;/script&gt;
&lt;/HEAD&gt;

&lt;!-- STEP TWO: Insert the event handlers into your BODY tag  --&gt;

&lt;BODY OnLoad="getwindowsize()" OnResize="getwindowsize()" background="space.jpg"&gt;

&lt;!-- STEP THREE: Copy this code into the BODY of your HTML document  --&gt;

&lt;div id="pic1" style="position:absolute; visibility:visible; left:0px; top:0px; z-index:-1"&gt;
&lt;img src="alien.gif" border="0"&gt;
&lt;/div&gt;

&lt;script language="javascript"&gt;
var pic1=eval('document.'+_all+'pic1'+_style);
&lt;/script&gt;


 

&lt;!-- Script Size:  2.62 KB --&gt;</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

</table>
</form>
</FONT>
</CENTER>


</center>
</body></html>



